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https://issues.apache.org/jira/browse/MESOS-364?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13599207#comment-13599207
]
Thomas Marshall commented on MESOS-364:
---------------------------------------
Neither applying Ben's patch nor running the tests as sudo has any effect on
the problem. In addition to encountering this on Ubuntu on EC2, the problem
appears to be affecting our Apache Jenkins builds:
https://builds.apache.org/job/Mesos-Trunk-Ubuntu-Build-Out-Of-Src-Disable-Java-Disable-Python-Disable-Webui/277/console
> cgroup tests fail on Ubuntu
> ---------------------------
>
> Key: MESOS-364
> URL: https://issues.apache.org/jira/browse/MESOS-364
> Project: Mesos
> Issue Type: Bug
> Reporter: Thomas Marshall
> Assignee: Benjamin Hindman
>
> Running Ubuntu 12.04.1 on EC2, make check gives the following:
> ...
> [----------] 1 test from LoggingTest
> [ RUN ] LoggingTest.Toggle
> [ OK ] LoggingTest.Toggle (10 ms)
> [----------] 1 test from LoggingTest (10 ms total)
> [----------] 1 test from CgroupsIsolationTest
> [ RUN ] CgroupsIsolationTest.ROOT_CGROUPS_BalloonFramework
> ../../src/tests/script.cpp:74: Failure
> Failed
> balloon_framework_test.sh exited with status 2
> [ FAILED ] CgroupsIsolationTest.ROOT_CGROUPS_BalloonFramework (4038 ms)
> [----------] 1 test from CgroupsIsolationTest (4038 ms total)
> [----------] 5 tests from CgroupsCpusetTest
> [ RUN ] CgroupsCpusetTest.OneCPUOneCpuset
> [ OK ] CgroupsCpusetTest.OneCPUOneCpuset (1 ms)
> [ RUN ] CgroupsCpusetTest.OneCPUManyCpusets
> [ OK ] CgroupsCpusetTest.OneCPUManyCpusets (0 ms)
> [ RUN ] CgroupsCpusetTest.ManyCPUOneCpuset
> [ OK ] CgroupsCpusetTest.ManyCPUOneCpuset (0 ms)
> [ RUN ] CgroupsCpusetTest.ManyCPUManyCpusets
> [ OK ] CgroupsCpusetTest.ManyCPUManyCpusets (0 ms)
> [ RUN ] CgroupsCpusetTest.IntegerAllocations
> [ OK ] CgroupsCpusetTest.IntegerAllocations (0 ms)
> [----------] 5 tests from CgroupsCpusetTest (1 ms total)
> [----------] 9 tests from CgroupsAnyHierarchyTest
> [ RUN ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Enabled
> [ OK ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Enabled (5 ms)
> [ RUN ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Subsystems
> [ OK ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Subsystems (5 ms)
> [ RUN ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Mounted
> [ OK ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Mounted (5 ms)
> [ RUN ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Get
> [ OK ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Get (69 ms)
> [ RUN ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_NestedCgroups
> [ OK ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_NestedCgroups (9 ms)
> [ RUN ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Tasks
> ../../src/tests/cgroups_tests.cpp:381: Failure
> Expected: (0u) != (pids.get().count(1)), actual: 0 vs 0
> ../../src/tests/cgroups_tests.cpp:382: Failure
> Expected: (0u) != (pids.get().count(::getpid())), actual: 0 vs 0
> [ FAILED ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Tasks (5 ms)
> [ RUN ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Read
> ../../src/tests/cgroups_tests.cpp:394: Failure
> Value of: strings::contains(result.get(), pid)
> Actual: false
> Expected: true
> [ FAILED ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Read (5 ms)
> [ RUN ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Write
> [ OK ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Write (21 ms)
> [ RUN ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Stat
> ../../src/tests/cgroups_tests.cpp:439: Failure
> result: 'cpuacct.stat' is not a valid control (is subsystem attached?)
> [ FAILED ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Stat (6 ms)
> [----------] 9 tests from CgroupsAnyHierarchyTest (131 ms total)
> [----------] 5 tests from CgroupsAnyHierarchyWithCpuMemoryTest
> [ RUN ] CgroupsAnyHierarchyWithCpuMemoryTest.ROOT_CGROUPS_Busy
> ../../src/tests/cgroups_tests.cpp:157: Failure
> cgroups::mount(HIERARCHY, subsystems): 'cpu' is already attached to another
> hierarchy
> -------------------------------------------------------------
> We cannot run any cgroups tests that require
> a hierarchy with subsystems 'cpu,memory'
> because we failed to find an existing hierarchy
> or create a new one. You can either remove all existing
> hierarchies, or disable this test case
> (i.e., --gtest_filter=-CgroupsAnyHierarchyWithCpuMemoryTest.*).
> -------------------------------------------------------------
> ../../src/tests/cgroups_tests.cpp:192: Failure
> cgroups: '' is not a valid hierarchy
> [ FAILED ] CgroupsAnyHierarchyWithCpuMemoryTest.ROOT_CGROUPS_Busy (3 ms)
> [ RUN ]
> CgroupsAnyHierarchyWithCpuMemoryTest.ROOT_CGROUPS_SubsystemsHierarchy
> ../../src/tests/cgroups_tests.cpp:157: Failure
> cgroups::mount(HIERARCHY, subsystems): 'cpu' is already attached to another
> hierarchy
> -------------------------------------------------------------
> We cannot run any cgroups tests that require
> a hierarchy with subsystems 'cpu,memory'
> because we failed to find an existing hierarchy
> or create a new one. You can either remove all existing
> hierarchies, or disable this test case
> (i.e., --gtest_filter=-CgroupsAnyHierarchyWithCpuMemoryTest.*).
> -------------------------------------------------------------
> ../../src/tests/cgroups_tests.cpp:192: Failure
> cgroups: '' is not a valid hierarchy
> [ FAILED ]
> CgroupsAnyHierarchyWithCpuMemoryTest.ROOT_CGROUPS_SubsystemsHierarchy (4 ms)
> [ RUN ]
> CgroupsAnyHierarchyWithCpuMemoryTest.ROOT_CGROUPS_MountedSubsystems
> ../../src/tests/cgroups_tests.cpp:157: Failure
> cgroups::mount(HIERARCHY, subsystems): 'cpu' is already attached to another
> hierarchy
> -------------------------------------------------------------
> We cannot run any cgroups tests that require
> a hierarchy with subsystems 'cpu,memory'
> because we failed to find an existing hierarchy
> or create a new one. You can either remove all existing
> hierarchies, or disable this test case
> (i.e., --gtest_filter=-CgroupsAnyHierarchyWithCpuMemoryTest.*).
> -------------------------------------------------------------
> ../../src/tests/cgroups_tests.cpp:192: Failure
> cgroups: '' is not a valid hierarchy
> [ FAILED ]
> CgroupsAnyHierarchyWithCpuMemoryTest.ROOT_CGROUPS_MountedSubsystems (63 ms)
> [ RUN ] CgroupsAnyHierarchyWithCpuMemoryTest.ROOT_CGROUPS_CreateRemove
> ../../src/tests/cgroups_tests.cpp:157: Failure
> cgroups::mount(HIERARCHY, subsystems): 'cpu' is already attached to another
> hierarchy
> -------------------------------------------------------------
> We cannot run any cgroups tests that require
> a hierarchy with subsystems 'cpu,memory'
> because we failed to find an existing hierarchy
> or create a new one. You can either remove all existing
> hierarchies, or disable this test case
> (i.e., --gtest_filter=-CgroupsAnyHierarchyWithCpuMemoryTest.*).
> -------------------------------------------------------------
> ../../src/tests/cgroups_tests.cpp:192: Failure
> cgroups: '' is not a valid hierarchy
> [ FAILED ] CgroupsAnyHierarchyWithCpuMemoryTest.ROOT_CGROUPS_CreateRemove
> (3 ms)
> [ RUN ] CgroupsAnyHierarchyWithCpuMemoryTest.ROOT_CGROUPS_Listen
> ../../src/tests/cgroups_tests.cpp:157: Failure
> cgroups::mount(HIERARCHY, subsystems): 'cpu' is already attached to another
> hierarchy
> -------------------------------------------------------------
> We cannot run any cgroups tests that require
> a hierarchy with subsystems 'cpu,memory'
> because we failed to find an existing hierarchy
> or create a new one. You can either remove all existing
> hierarchies, or disable this test case
> (i.e., --gtest_filter=-CgroupsAnyHierarchyWithCpuMemoryTest.*).
> -------------------------------------------------------------
> ../../src/tests/cgroups_tests.cpp:192: Failure
> cgroups: '' is not a valid hierarchy
> [ FAILED ] CgroupsAnyHierarchyWithCpuMemoryTest.ROOT_CGROUPS_Listen (3 ms)
> [----------] 5 tests from CgroupsAnyHierarchyWithCpuMemoryTest (77 ms total)
> [----------] 1 test from CgroupsNoHierarchyTest
> -------------------------------------------------------------
> We cannot run any cgroups tests that require mounting
> hierarchies because you have the following hierarchies mounted:
> /sys/fs/cgroup/cpu, /sys/fs/cgroup/cpuacct, /sys/fs/cgroup/devices,
> /sys/fs/cgroup/freezer, /sys/fs/cgroup/memory
> You can either unmount those hierarchies, or disable
> this test case (i.e., --gtest_filter=-CgroupsNoHierarchyTest.*).
> -------------------------------------------------------------
> [ RUN ] CgroupsNoHierarchyTest.ROOT_CGROUPS_MountUnmountHierarchy
> ../../src/tests/cgroups_tests.cpp:296: Failure
> cgroups::mount(HIERARCHY, "cpu,memory"): 'cpu' is already attached to another
> hierarchy
> [ FAILED ] CgroupsNoHierarchyTest.ROOT_CGROUPS_MountUnmountHierarchy (0 ms)
> [----------] 1 test from CgroupsNoHierarchyTest (0 ms total)
> [----------] 3 tests from CgroupsAnyHierarchyWithCpuMemoryFreezerTest
> [ RUN ] CgroupsAnyHierarchyWithCpuMemoryFreezerTest.ROOT_CGROUPS_Freeze
> ../../src/tests/cgroups_tests.cpp:157: Failure
> cgroups::mount(HIERARCHY, subsystems): 'cpu' is already attached to another
> hierarchy
> -------------------------------------------------------------
> We cannot run any cgroups tests that require
> a hierarchy with subsystems 'cpu,memory,freezer'
> because we failed to find an existing hierarchy
> or create a new one. You can either remove all existing
> hierarchies, or disable this test case
> (i.e., --gtest_filter=-CgroupsAnyHierarchyWithCpuMemoryFreezerTest.*).
> -------------------------------------------------------------
> ../../src/tests/cgroups_tests.cpp:192: Failure
> cgroups: '' is not a valid hierarchy
> [ FAILED ] CgroupsAnyHierarchyWithCpuMemoryFreezerTest.ROOT_CGROUPS_Freeze
> (4 ms)
> [ RUN ] CgroupsAnyHierarchyWithCpuMemoryFreezerTest.ROOT_CGROUPS_Kill
> ../../src/tests/cgroups_tests.cpp:157: Failure
> cgroups::mount(HIERARCHY, subsystems): 'cpu' is already attached to another
> hierarchy
> -------------------------------------------------------------
> We cannot run any cgroups tests that require
> a hierarchy with subsystems 'cpu,memory,freezer'
> because we failed to find an existing hierarchy
> or create a new one. You can either remove all existing
> hierarchies, or disable this test case
> (i.e., --gtest_filter=-CgroupsAnyHierarchyWithCpuMemoryFreezerTest.*).
> -------------------------------------------------------------
> ../../src/tests/cgroups_tests.cpp:192: Failure
> cgroups: '' is not a valid hierarchy
> [ FAILED ] CgroupsAnyHierarchyWithCpuMemoryFreezerTest.ROOT_CGROUPS_Kill (3
> ms)
> [ RUN ] CgroupsAnyHierarchyWithCpuMemoryFreezerTest.ROOT_CGROUPS_Destroy
> ../../src/tests/cgroups_tests.cpp:157: Failure
> cgroups::mount(HIERARCHY, subsystems): 'cpu' is already attached to another
> hierarchy
> -------------------------------------------------------------
> We cannot run any cgroups tests that require
> a hierarchy with subsystems 'cpu,memory,freezer'
> because we failed to find an existing hierarchy
> or create a new one. You can either remove all existing
> hierarchies, or disable this test case
> (i.e., --gtest_filter=-CgroupsAnyHierarchyWithCpuMemoryFreezerTest.*).
> -------------------------------------------------------------
> ../../src/tests/cgroups_tests.cpp:192: Failure
> cgroups: '' is not a valid hierarchy
> [ FAILED ] CgroupsAnyHierarchyWithCpuMemoryFreezerTest.ROOT_CGROUPS_Destroy
> (3 ms)
> [----------] 3 tests from CgroupsAnyHierarchyWithCpuMemoryFreezerTest (10 ms
> total)
> [----------] 3 tests from FsTest
> [ RUN ] FsTest.MountTableRead
> [ OK ] FsTest.MountTableRead (0 ms)
> [ RUN ] FsTest.MountTableHasOption
> [ OK ] FsTest.MountTableHasOption (0 ms)
> [ RUN ] FsTest.FileSystemTableRead
> [ OK ] FsTest.FileSystemTableRead (0 ms)
> [----------] 3 tests from FsTest (1 ms total)
> [----------] 4 tests from ProcTest
> [ RUN ] ProcTest.Pids
> [ OK ] ProcTest.Pids (1 ms)
> [ RUN ] ProcTest.Cpus
> [ OK ] ProcTest.Cpus (0 ms)
> [ RUN ] ProcTest.SystemStatistics
> [ OK ] ProcTest.SystemStatistics (0 ms)
> [ RUN ] ProcTest.ProcessStatistics
> [ OK ] ProcTest.ProcessStatistics (1 ms)
> [----------] 4 tests from ProcTest (2 ms total)
> [----------] 15 tests from ZooKeeperTest
> [ RUN ] ZooKeeperTest.Auth
> [ OK ] ZooKeeperTest.Auth (2768 ms)
> [ RUN ] ZooKeeperTest.Create
> [ OK ] ZooKeeperTest.Create (2796 ms)
> [ RUN ] ZooKeeperTest.MasterDetector
> [ OK ] ZooKeeperTest.MasterDetector (648 ms)
> [ RUN ] ZooKeeperTest.MasterDetectors
> [ OK ] ZooKeeperTest.MasterDetectors (805 ms)
> [ RUN ] ZooKeeperTest.MasterDetectorShutdownNetwork
> 2013-02-27
> 23:22:34,673:27037(0x7f151adfb700):ZOO_ERROR@handle_socket_error_msg@1603:
> Socket [127.0.0.1:59133] zk retcode=-4, errno=112(Host is down): failed while
> receiving a server response
> [ OK ] ZooKeeperTest.MasterDetectorShutdownNetwork (4237 ms)
> [ RUN ] ZooKeeperTest.MasterDetectorExpireMasterZKSession
> 2013-02-27
> 23:22:39,548:27037(0x7f151adfb700):ZOO_ERROR@handle_socket_error_msg@1603:
> Socket [127.0.0.1:34023] zk retcode=-4, errno=112(Host is down): failed while
> receiving a server response
> E0227 23:22:39.548373 27053 detector.cpp:477] Master detector
> ((740)@10.4.118.16:51338) failed to get masters: connection loss
> 2013-02-27
> 23:22:42,882:27037(0x7f151adfb700):ZOO_ERROR@handle_socket_error_msg@1621:
> Socket [127.0.0.1:34023] zk retcode=-112, errno=116(Stale NFS file handle):
> sessionId=0x13d1df6fe630000 has expired.
> [ OK ] ZooKeeperTest.MasterDetectorExpireMasterZKSession (4803 ms)
> [ RUN ] ZooKeeperTest.MasterDetectorExpireSlaveZKSession
> 2013-02-27
> 23:22:43,811:27037(0x7f151bfff700):ZOO_ERROR@handle_socket_error_msg@1603:
> Socket [127.0.0.1:43702] zk retcode=-4, errno=112(Host is down): failed while
> receiving a server response
> 2013-02-27
> 23:22:47,149:27037(0x7f151bfff700):ZOO_ERROR@handle_socket_error_msg@1621:
> Socket [127.0.0.1:43702] zk retcode=-112, errno=116(Stale NFS file handle):
> sessionId=0x13d1df70f9b0001 has expired.
> [ OK ] ZooKeeperTest.MasterDetectorExpireSlaveZKSession (4821 ms)
> [ RUN ] ZooKeeperTest.MasterDetectorExpireSlaveZKSessionNewMaster
> 2013-02-27
> 23:22:48,857:27037(0x7f151a4f9700):ZOO_ERROR@handle_socket_error_msg@1603:
> Socket [127.0.0.1:37117] zk retcode=-4, errno=112(Host is down): failed while
> receiving a server response
> 2013-02-27
> 23:22:48,901:27037(0x7f151b5fc700):ZOO_ERROR@handle_socket_error_msg@1603:
> Socket [127.0.0.1:37117] zk retcode=-4, errno=112(Host is down): failed while
> receiving a server response
> 2013-02-27
> 23:22:48,903:27037(0x7f151b5fc700):ZOO_ERROR@handle_socket_error_msg@1621:
> Socket [127.0.0.1:37117] zk retcode=-112, errno=116(Stale NFS file handle):
> sessionId=0x13d1df722ab0000 has expired.
> E0227 23:22:48.904062 27051 detector.cpp:477] Master detector
> ((754)@10.4.118.16:51338) failed to get masters: session expired
> ../../src/tests/zookeeper_tests.cpp:441: Failure
> Mock function called more times than expected - returning directly.
> Function call: newMasterDetected(@0x7f1540b71cd0 (757)@10.4.118.16:51338)
> Expected: to be called once
> Actual: called twice - over-saturated and active
> 2013-02-27
> 23:22:52,192:27037(0x7f151a4f9700):ZOO_ERROR@handle_socket_error_msg@1621:
> Socket [127.0.0.1:37117] zk retcode=-112, errno=116(Stale NFS file handle):
> sessionId=0x13d1df722ab0002 has expired.
> [ FAILED ] ZooKeeperTest.MasterDetectorExpireSlaveZKSessionNewMaster (4489
> ms)
> [ RUN ] ZooKeeperTest.Group
> [ OK ] ZooKeeperTest.Group (682 ms)
> [ RUN ] ZooKeeperTest.GroupJoinWithDisconnect
> 2013-02-27
> 23:22:53,689:27037(0x7f151adfb700):ZOO_ERROR@handle_socket_error_msg@1603:
> Socket [127.0.0.1:53182] zk retcode=-4, errno=112(Host is down): failed while
> receiving a server response
> [ OK ] ZooKeeperTest.GroupJoinWithDisconnect (2716 ms)
> [ RUN ] ZooKeeperTest.GroupDataWithDisconnect
> 2013-02-27
> 23:22:56,462:27037(0x7f151b5fc700):ZOO_ERROR@handle_socket_error_msg@1603:
> Socket [127.0.0.1:41512] zk retcode=-4, errno=112(Host is down): failed while
> receiving a server response
> [ OK ] ZooKeeperTest.GroupDataWithDisconnect (2835 ms)
> [ RUN ] ZooKeeperTest.GroupCancelWithDisconnect
> 2013-02-27
> 23:22:59,254:27037(0x7f151adfb700):ZOO_ERROR@handle_socket_error_msg@1603:
> Socket [127.0.0.1:38420] zk retcode=-4, errno=112(Host is down): failed while
> receiving a server response
> [ OK ] ZooKeeperTest.GroupCancelWithDisconnect (2794 ms)
> [ RUN ] ZooKeeperTest.GroupWatchWithSessionExpiration
> 2013-02-27
> 23:23:02,131:27037(0x7f151b5fc700):ZOO_ERROR@handle_socket_error_msg@1603:
> Socket [127.0.0.1:43148] zk retcode=-4, errno=112(Host is down): failed while
> receiving a server response
> 2013-02-27
> 23:23:04,135:27037(0x7f151b5fc700):ZOO_ERROR@handle_socket_error_msg@1621:
> Socket [127.0.0.1:43148] zk retcode=-112, errno=116(Stale NFS file handle):
> sessionId=0x13d1df757390000 has expired.
> [ OK ] ZooKeeperTest.GroupWatchWithSessionExpiration (2892 ms)
> [ RUN ] ZooKeeperTest.MultipleGroups
> 2013-02-27
> 23:23:05,058:27037(0x7f151b5fc700):ZOO_ERROR@handle_socket_error_msg@1603:
> Socket [127.0.0.1:55060] zk retcode=-4, errno=112(Host is down): failed while
> receiving a server response
> [ OK ] ZooKeeperTest.MultipleGroups (908 ms)
> [ RUN ] ZooKeeperTest.GroupPathWithRestrictivePerms
> [ OK ] ZooKeeperTest.GroupPathWithRestrictivePerms (6813 ms)
> [----------] 15 tests from ZooKeeperTest (45010 ms total)
> [----------] 2 tests from AllocatorZooKeeperTest/0, where TypeParam =
> mesos::internal::master::HierarchicalAllocatorProcess<mesos::internal::master::DRFSorter,
> mesos::internal::master::DRFSorter>
> [ RUN ] AllocatorZooKeeperTest/0.FrameworkReregistersFirst
> [ OK ] AllocatorZooKeeperTest/0.FrameworkReregistersFirst (3573 ms)
> [ RUN ] AllocatorZooKeeperTest/0.SlaveReregisterFirst
> [ OK ] AllocatorZooKeeperTest/0.SlaveReregisterFirst (3540 ms)
> [----------] 2 tests from AllocatorZooKeeperTest/0 (7203 ms total)
> [----------] Global test environment tear-down
> [==========] 240 tests from 46 test cases ran. (124639 ms total)
> [ PASSED ] 225 tests.
> [ FAILED ] 15 tests, listed below:
> [ FAILED ] ExamplesTest.PythonFramework
> [ FAILED ] CgroupsIsolationTest.ROOT_CGROUPS_BalloonFramework
> [ FAILED ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Tasks
> [ FAILED ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Read
> [ FAILED ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Stat
> [ FAILED ] CgroupsAnyHierarchyWithCpuMemoryTest.ROOT_CGROUPS_Busy
> [ FAILED ]
> CgroupsAnyHierarchyWithCpuMemoryTest.ROOT_CGROUPS_SubsystemsHierarchy
> [ FAILED ]
> CgroupsAnyHierarchyWithCpuMemoryTest.ROOT_CGROUPS_MountedSubsystems
> [ FAILED ] CgroupsAnyHierarchyWithCpuMemoryTest.ROOT_CGROUPS_CreateRemove
> [ FAILED ] CgroupsAnyHierarchyWithCpuMemoryTest.ROOT_CGROUPS_Listen
> [ FAILED ] CgroupsNoHierarchyTest.ROOT_CGROUPS_MountUnmountHierarchy
> [ FAILED ] CgroupsAnyHierarchyWithCpuMemoryFreezerTest.ROOT_CGROUPS_Freeze
> [ FAILED ] CgroupsAnyHierarchyWithCpuMemoryFreezerTest.ROOT_CGROUPS_Kill
> [ FAILED ] CgroupsAnyHierarchyWithCpuMemoryFreezerTest.ROOT_CGROUPS_Destroy
> [ FAILED ] ZooKeeperTest.MasterDetectorExpireSlaveZKSessionNewMaster
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